Castle Biosciences (CSTL) Inventory (2018 - 2026)
Castle Biosciences (CSTL) posted Inventory of $10.38 million for Q3 2026, up 20.0% from $8.65 million a year earlier but down 1.9% from the prior quarter.
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Analysis
Castle Biosciences (CSTL) Inventory (2018 - 2026) Analysis & Trends
At the end of FY2025, Castle Biosciences' Inventory came in at $10.25 million, up 26.0% from FY2024.
- Annual Inventory has increased for four consecutive years, with a five-year compound annual growth rate of 35.8% (FY2020 to FY2025).
- In prior years, Castle Biosciences' Inventory was $8.14 million in FY2024 (+2.4%), $7.94 million in FY2023 (+99.5%), $3.98 million in FY2022 (+96.9%) and $2.02 million in FY2021 (-8.8%).
- Quarterly Inventory has run from a low of $2.02 million in Q4 2021 to a high of $10.58 million in Q2 2026 over five years.
- On a year-over-year basis, Inventory has increased in each of the last six quarters, with growth averaging 19.2% over the last eight quarters.
- The strongest year-over-year quarter for Inventory in the past five years was Q4 2023, with growth of 99.5%; the weakest was Q1 2025, with a decline of 10.4%.
- According to Business Quant data, Inventory for the three prior quarters was $10.58 million (Q2 2026), $10.46 million (Q1 2026) and $10.25 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Inventory (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 105.29 Bn | 103.13 Bn | 17.03 Bn | 1.67 Bn |
| 2 | Natera | 46.06 Bn | 41.68 Bn | 513.47 Mn | 91.70 Mn |
| 3 | Labcorp Holdings | 30.09 Bn | 28.19 Bn | 1.11 Bn | 538.40 Mn |
| 4 | Quest Diagnostics | 28.58 Bn | 26.66 Bn | 1.04 Bn | 218.00 Mn |
| 5 | Guardant Health | 20.44 Bn | 16.05 Bn | 236.15 Mn | 93.49 Mn |
| 6 | BrightSpring Health Services | 14.16 Bn | 11.04 Bn | 518.55 Mn | 671.59 Mn |
| 7 | Encompass Health | 13.83 Bn | 14.29 Bn | 1.54 Bn | - |
| 8 | Tempus AI | 12.69 Bn | 9.84 Bn | 266.70 Mn | 53.77 Mn |
| 9 | Davita | 11.06 Bn | 9.92 Bn | 1.13 Bn | 161.46 Mn |
| 10 | Castle Biosciences | 1.04 Bn | -65.97 Mn | 78.97 Mn | 10.38 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 10.38 Mn |
| Jun 30, 2026 | 10.58 Mn |
| Mar 31, 2026 | 10.46 Mn |
| Dec 31, 2025 | 10.25 Mn |
| Sep 30, 2025 | 8.65 Mn |
| Jun 30, 2025 | 8.37 Mn |
| Mar 31, 2025 | 6.85 Mn |
| Dec 31, 2024 | 8.14 Mn |
| Sep 30, 2024 | 6.57 Mn |
| Jun 30, 2024 | 8.01 Mn |
| Mar 31, 2024 | 7.65 Mn |
| Dec 31, 2023 | 7.94 Mn |
| Sep 30, 2023 | 5.77 Mn |
| Jun 30, 2023 | 6.12 Mn |
| Mar 31, 2023 | 4.52 Mn |
| Dec 31, 2022 | 3.98 Mn |
| Sep 30, 2022 | 3.80 Mn |
| Jun 30, 2022 | 3.37 Mn |
| Mar 31, 2022 | 2.35 Mn |
| Dec 31, 2021 | 2.02 Mn |
API Access
Castle Biosciences Inventory API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=inventory&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "inventory", "ticker": "CSTL", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=inventory&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();